WO2017055071A1 - Dispositif d'amortissement pour une partie extérieure, agencement comprenant un dispositif d'amortissement et véhicule automobile - Google Patents

Dispositif d'amortissement pour une partie extérieure, agencement comprenant un dispositif d'amortissement et véhicule automobile Download PDF

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Publication number
WO2017055071A1
WO2017055071A1 PCT/EP2016/071492 EP2016071492W WO2017055071A1 WO 2017055071 A1 WO2017055071 A1 WO 2017055071A1 EP 2016071492 W EP2016071492 W EP 2016071492W WO 2017055071 A1 WO2017055071 A1 WO 2017055071A1
Authority
WO
WIPO (PCT)
Prior art keywords
damping device
damping
outer part
plate
shaped
Prior art date
Application number
PCT/EP2016/071492
Other languages
German (de)
English (en)
Inventor
Uwe Kupfernagel
Michael Hallek
Original Assignee
Valeo Schalter Und Sensoren Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Schalter Und Sensoren Gmbh filed Critical Valeo Schalter Und Sensoren Gmbh
Priority to US15/763,476 priority Critical patent/US11056091B2/en
Priority to EP16763529.1A priority patent/EP3356851A1/fr
Publication of WO2017055071A1 publication Critical patent/WO2017055071A1/fr

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details
    • G01S2015/938—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details in the bumper area

Definitions

  • Damping device for an outer part, arrangement with a damping device and motor vehicle
  • the invention relates to a damping device for an outer part of a motor vehicle for damping vibrations of the outer part caused by an ultrasonic sensor when emitting and / or receiving ultrasonic signals.
  • the invention also relates to an arrangement with a damping device and a motor vehicle.
  • an ultrasound signal is emitted by the ultrasound sensors and the ultrasound signal reflected on an object in the surrounding area is received again.
  • Information about the detected object for example, a distance of the object to the motor vehicle, can thereby a driver assistance system of the
  • a parking assistance system can be provided.
  • Vehicle outer skin for example behind bumpers or an outer lining of side doors of the motor vehicle to arrange.
  • the ultrasonic sensors are located on a rear side facing away from the surrounding area of the motor vehicle
  • the ultrasonic sensors emit and / or receive the ultrasonic signals through the cowling.
  • undesired vibrations for example structure-borne noise or vibrations, in the outer part can be excited.
  • These vibrations may represent interference signals for adjacent ultrasonic sensors, which are also concealed on the outer trim part.
  • damping devices for example rubber rings
  • a disadvantage of the damping devices according to the prior art is that the damping devices usually have a dependence on a temperature of the outer part and a frequency of the excited oscillation and thus not the requirements of a complete damping the plate vibrations over the required temperature range, in particular at frequencies in the ultrasonic range sufficient.
  • a damping device for an outer part of a motor vehicle is used for damping oscillations of the outer part caused by an ultrasonic sensor when emitting and / or receiving ultrasonic signals.
  • the damping device has at least two damping elements, wherein a first of the damping elements for increasing a degree of damping of the outer part in a first temperature range of the outer part and / or in a first frequency range of the vibrations is formed and a second of the damping elements for increasing a degree of damping of the outer part in a the first temperature range is formed different second temperature range of the outer part and / or in a second frequency range of the vibrations different from the first frequency range.
  • the damping device which can be arranged together with the ultrasonic sensor on a rear side of the outer part facing away from a surrounding area of the motor vehicle, serves to attenuate or dampen the vibrations which are generated by the ultrasonic sensor during transmission and / or reception
  • the outer part may for example comprise glass, metal or a plastic and be formed for example as a bumper or a side door of the motor vehicle.
  • the vibrations caused by the ultrasonic sensor during transmission and / or reception can be vibrations of the outer part or structure-borne noise, for example, which propagate in the outer part, for example in a plane perpendicular to the transmission direction. Due to the propagation of the vibrations in the outer part, for example, other ultrasonic sensors can be disturbed during transmission and / or reception. Also, reflections of the vibrations in the outer part of the
  • the damping device Disturbing the ultrasonic sensor itself during transmission and / or reception. To prevent these disturbances, the vibrations of the outer part are damped by the damping device. In this case, the damping device
  • the damping device is arranged adjacent to the back of the outer part, for example glued to the back of the outer part.
  • the damping device In order to also ensure that the vibrations reliably over a high temperature range of, for example -40 degrees Celsius to +120 degrees Celsius and / or a high frequency range, which in particular includes frequencies in the ultrasonic range, can be damped, the damping device, the at least two damping elements or attenuators on.
  • the first damping element and the outer part form a first oscillatory system, which has a first degree of damping
  • the first attenuation measure is in the first frequency range and / or in the first frequency range
  • the second attenuation measure has a higher value than the first attenuation measure in the second temperature range and / or in the second frequency range.
  • Each damping element is thus assigned a temperature range and / or frequency range in which the
  • the first damping element has a first temperature-dependent and / or frequency-dependent damping capacity and the second
  • Damping element has a second temperature-dependent and / or
  • the first damping capacity of the first damping element in the first temperature range and / or first frequency range is greater than the second damping capacity of the second Damping element.
  • Damping element is in the second temperature range and / or second
  • the temperature ranges are part of the overall temperature range.
  • the first temperature range may include temperatures from -40 degrees Celsius to +40 degrees Celsius
  • the second temperature range may include temperatures from +40 degrees Celsius to +120 degrees Celsius. It is also possible to provide more than two damping elements, wherein each of the damping elements increases the degree of damping for the outer part in a temperature range and / or frequency range assigned to the damping element.
  • the at least two damping elements can be provided in a particularly simple manner, a reliable and efficient damping of vibrations in the outer part over a high temperature range and / or a high frequency range and thus a high degree of functionality of the ultrasonic sensor can be provided.
  • the first damping element preferably has a first material or a first material and the second damping element has a second material or a second material that is different from the first material.
  • the damping elements have different materials or material mixtures.
  • the first material in particular has a first viscoelastic material property and the second material has a second one
  • the materials thus differ in particular in their viscoelastic material properties.
  • Such a viscoelastic material property can be, for example, the complex elastic modulus, which has an elastic component, the so-called storage module, and a viscous component, the so-called loss modulus.
  • the elastic component of the complex modulus of elasticity represents the proportion of a rigidity of the material which results in that the energy of a mechanical load of a material can be stored by elastic deformation and subsequently released again.
  • the viscous portion represents the proportion of stiffness that causes the energy of a mechanical load to be converted from the material to frictional heat by plastic deformation.
  • Another viscoelastic material property may be the so-called loss factor, which denotes the ratio between the viscous component, ie the loss modulus, and the elastic component, ie the storage modulus.
  • Loading speed in particular a frequency depending.
  • these mechanical properties of the material so for example, a damping capacity of the material, influenced or predetermined.
  • the materials can therefore be selected based on their viscoelastic material properties such that they are optimized for the respective associated temperature range and / or frequency range.
  • Temperature range and / or the first frequency range is optimized.
  • the second material is for maximum vibration damping in the second
  • the first damping element preferably comprises bitumen as the first material and the second damping element comprises butyl rubber as the second material. Bitumen and butyl rubber are particularly suitable for forming the damping elements due to their sound-absorbing effect.
  • the damping device has a continuous recess for arranging the ultrasonic sensor in the recess.
  • the recess may for example be provided as a hole in the damping device, so that a pointing in the transmission direction front of the ultrasonic sensor and a surface of the damping device are arranged in particular flush and can be arranged adjacent to the back of the outer part.
  • Damping elements comprises, is disposed adjacent to the ultrasonic sensor or surrounds the ultrasonic sensor, so that vibrations within the Outer part, which, for example, propagate perpendicular to the transmission direction in the outer part, can be efficiently and reliably damped.
  • the damping device is plate-shaped, wherein the first damping element is formed by a first region of the plate-shaped damping device and the second damping element by a second region of the plate-shaped
  • Damping device is formed.
  • the damping device is in particular designed in one piece and comprises the at least two mutually separated, in particular adjacent areas. Each area can have a different, temperature-optimized and / or frequency-optimized material.
  • the first region may comprise bitumen and the second region may comprise butyl rubber.
  • Under the plate-shaped damping device is here to be understood a damping device whose thickness is small compared to their other geometric dimensions, for example, to its diameter.
  • the plate-shaped damping device can also be deformable or bendable and configured, for example, as a damping foil or damping diaphragm.
  • the damping device can be adapted to a shape of the back of the outer part and arranged, for example, over its entire surface adjacent to the back of the outer part.
  • a designed as a plate-shaped damping device damping device is particularly low weight and space saving in an advantageous manner.
  • a peripheral edge extending perpendicularly to a surface of the damping device extending along the outer edge of the plate-shaped damping device is circular.
  • the damping device is designed as a round, circular plate or membrane.
  • the plate-shaped damping device has a concentric structure, wherein the first region of a longitudinal axis perpendicular to a surface of the plate-shaped damping device
  • Damping device is formed up to a first distance from the longitudinal axis and the second region is formed adjacent to the first region from the first distance to a second distance from the longitudinal axis.
  • the first region is arranged centrally in the plate-shaped damping device, wherein an outer boundary of the first region arranged parallel and spaced from the outer edge of the plate-shaped damping device. If, for example, the recess is arranged in the region of the longitudinal axis, that is to say centrally in the plate-shaped damping device, then the first region is formed adjacent to the recess and surrounds the recess completely.
  • the second region is formed adjacent to the first region and completely surrounds the first region.
  • the first region and the second region are in particular formed annularly around the longitudinal axis. If the plate-shaped damping device has exactly two damping elements, that is to say two regions, an outer boundary of the second region corresponds to the outer circumference of the plate-shaped damping device.
  • a damping device designed in this way is particularly easy to manufacture.
  • a development of the invention provides that the plate-shaped
  • Damping device has a layered structure and at least two
  • first region is formed by a first layer and the second region is formed by a second layer adjacent to the first layer.
  • first region extends from a surface of the plate-shaped damping device forming an upper side of the plate-shaped damping device to a first distance from the upper side.
  • the second region extends from the first distance to a second distance from the top.
  • the second region extends from the first distance to a, a bottom side of the plate-shaped damping device forming surface of the plate-shaped damping device.
  • the at least two layers can each have different materials, so that the plate-shaped damping device is designed as a material sandwich.
  • the layers are designed in particular congruent or congruent.
  • Damping device particularly easy to a predetermined
  • Damping device extending circumferential direction at least two adjacent segments, wherein the first region is formed by a first segment and the second region is formed by a second segment.
  • the plate-shaped damping device is segmented or divided along the direction of rotation.
  • Each of the segments can be designed, for example, cake-shaped. It can be provided that the plate-shaped damping device is divided along the circumferential direction into more than two segments, wherein the segments, for example, alternately the first material and the second material.
  • damping device more than two
  • Damping device has a layered structure, wherein at least one of the layers may have the concentric structure and / or the segmented structure.
  • a variety of materials can be combined with each material optimized for a predetermined temperature range and / or frequency range.
  • the damping device can be easily and quickly customized manufactured and adapted, for example, to a later site, for example, there prevailing outside temperatures.
  • a particularly good and efficient damping of the outer part over a high temperature range and / or a high frequency range can be ensured in a simple manner.
  • the plate-shaped damping device has a stiffening layer, wherein the at least two damping elements are arranged on the stiffening layer.
  • the stiffening layer may for example be formed of aluminum and be designed in combination with the damping elements for absorbing shear forces and thus for particularly efficient damping.
  • the plate-shaped damping device has a thickness of at most 1 mm and / or a diameter of at most 20 cm, in particular at most 10 cm. Due to this small thickness and / or the small diameter, the damping device on the one hand on a particularly low weight and on the other hand can be particularly space-saving attached to the back of the outer trim part.
  • the plate-shaped damping device on a surface of the damping device on an adhesive layer for attachment to a remote from a surrounding region of the motor vehicle rear side of the outer part may be configured, for example, as a pre-punched adhesive plate or adhesive pad or as a self-adhesive film, which individually for a customer or the later site of the
  • Damping device can be put together. The customer to whom the
  • Damping elements applied for example, applied to the stiffening layer, the damping device via the adhesive layer particularly simple and
  • the invention also relates to an arrangement for a motor vehicle having at least one ultrasonic sensor, an outer part of the motor vehicle and at least one damping device, wherein the at least one ultrasonic sensor and the at least one damping device are arranged on a rear side of the outer part facing away from an ambient region of the motor vehicle.
  • the ultrasonic sensor may comprise a vibratable membrane which comprises a membrane bottom and a membrane shell wall.
  • the diaphragm bottom has a, in the ultrasonic signals emitting transmission direction of the ultrasonic sensor facing front side and a front side opposite the rear side.
  • the outer part may for example be a bumper or a side door of the motor vehicle.
  • Damping device can be arranged on the back of the outer part, for example, glued to the back of the outer part, be.
  • the ultrasonic sensor transmits the ultrasonic signals along the transmission direction through the outer covering part in the transmission direction into an environmental region of the motor vehicle and / or receives the ultrasonic signals reflected at an object in the surrounding region through the outer part.
  • a first oscillatory system formed with a first degree of damping and formed by the outer part and the second damping element, a second oscillatory system with a second degree of damping. This is the first one
  • the damping device is applied to the back of the outer part by means of a spraying process and / or a metering process.
  • the damping device can be arranged particularly quickly and easily, for example by spraying and / or brushing, on the back of the outer part.
  • a motor vehicle according to the invention comprises an arrangement according to the invention.
  • the motor vehicle is designed in particular as a passenger car.
  • Fig. 1 is a schematic representation of an embodiment of a
  • Fig. 2 is a schematic representation of an embodiment of a
  • FIG. 3 is a schematic representation of a further embodiment of a damping device according to the invention in a plan view
  • FIG. 4 shows a schematic illustration of a further embodiment of a damping device according to the invention in a side sectional view
  • Fig. 5 is a schematic representation of two characteristics, which respective
  • FIG. 1 shows a motor vehicle 1 according to an embodiment of the present invention
  • the motor vehicle 1 is formed in the present case as a passenger car.
  • the motor vehicle 1 has an arrangement 2 which comprises an outer part 3 of the motor vehicle 1, an ultrasonic sensor 4 and a damping device 5.
  • the outer part 3 is formed in the present case as a side door of the motor vehicle 1.
  • the outer part 3, for example, but also be designed as a bumper of the motor vehicle 1.
  • Damping device 5 are concealed on the motor vehicle 1 installed. This means that the ultrasonic sensor 4 and the damping device 5 at a Surrounding area 6 of the motor vehicle 1 facing away from the back of the outer part 3 are arranged.
  • the ultrasonic sensor 4 is designed to detect the surrounding area 6 of the motor vehicle 1. For this purpose, the ultrasonic sensor 4 emit ultrasonic signals along a transmission direction into the surrounding area 6 and / or out of the
  • the ultrasonic sensor 4 transmits and / or receives the ultrasonic signals through the outer part 3.
  • vibrations such as vibrations or
  • Structure-borne sound are excited in the outer part 3, which can spread over a surface of the outer part 3, in particular perpendicular to the transmission direction.
  • the damping device 5 comprises at least two damping elements 7, 8.
  • the first damping element 7 increases a degree of damping of the outer part 3 in a first temperature range of
  • the second damping element 8 increases the degree of damping of the outer part 3 in a different from the first temperature range second temperature range of the outer part 3 and / or a different from the first frequency range second
  • the first damping element 7 and the outer part 3 thus form a first oscillatory system with a first degree of damping and the second damping element 8 and the outer part 3 form a second
  • the first degree of attenuation in the first temperature range and / or the first frequency range is higher than the second degree of attenuation.
  • the second degree of attenuation is higher than the first in the second temperature range and / or the second frequency range
  • damping elements 7, 8 so vibrations in a particularly high total temperature range, for example, between -40 degrees Celsius and +120 degrees Celsius, and / or in a particularly high
  • the first damping element 7 can be designed, for example, to damp vibrations, in particular, at low temperatures of the outer part 3, while the second damping element 8 is designed to
  • Fig. 2 shows an embodiment of a damping device 5 according to the invention in a plan view.
  • the damping device 5 is plate-shaped here and has as the damping elements 7, 8, two separate areas 9, 10.
  • a longitudinal axis L of the damping device 5 runs here into the plane of the drawing. Center in the
  • the plate-shaped damping device 5 is here a recess 1 1 is provided, in which the ultrasonic sensor 4 can be arranged.
  • the ultrasonic sensor 4 is arranged such that the ultrasonic sensor 4 emits the ultrasonic signals in a transmission direction parallel to the longitudinal axis L and / or against the
  • the plate-shaped damping device 5 has here, along a
  • the plate-shaped damping device 5 has a concentric structure.
  • the areas 9, 10 are annular.
  • the first region 9 is formed adjacent to the recess 1 1 and surrounds the recess 1 1 completely.
  • An outer boundary of the first area 9 has a first distance 13 from the longitudinal axis L.
  • the second region 10 is formed adjacent to the first region 9 and completely surrounds the first region 9.
  • the second region 10 extends from the first distance 13 to a second distance 14 from the longitudinal axis L.
  • An outer boundary of the second region 10 here corresponds to the outer edge 12 of the plate-shaped damping device 5.
  • the first damping element 7, which is formed by the first region 9, here has a first material M1 with a first viscoelastic material property.
  • the second damping element 8, which is formed by the second region 10, has a second material M2 with a second viscoelastic material property.
  • the viscoelastic properties can be complex, for example
  • the first material M1 or the first viscoelastic material property is optimized for the first temperature range and / or the first frequency range and may comprise bitumen, for example.
  • the second material M2 or the second viscoelastic material property is optimized for the second temperature range and / or the second frequency range and may comprise, for example, butyl rubber.
  • a surface 15 of the plate-shaped damping device 5 may have an adhesive layer by means of which the damping device 5 can be connected to the rear side of the outer part 3.
  • the plate-shaped damping device 5 can also as be designed a self-adhesive film and in particular deformable
  • Damping device 5 over the entire surface adjacent to the back of the outer part 3 can be arranged.
  • Fig. 3 shows a further embodiment of the damping device 5 according to the invention in a plan view.
  • the plate-shaped damping device 5 is divided into segments 16, 17 along the circumferential direction U surrounding the longitudinal axis L.
  • the regions 9, 10 are thus here in the form of cake-piece-shaped segments 16, 17, which are formed adjacent to one another along the direction of rotation U.
  • the damping device 5 shows a further embodiment of the damping device 5 according to the invention in a side sectional view. It can be seen that the damping device 5 is mounted on the rear side 18 of the outer part 3 or the outer skin of the vehicle facing away from the surrounding area 6 of the motor vehicle 1.
  • the ultrasonic sensor 4 can be arranged so that the surface 15 of the damping device 5 and an upper surface of the ultrasonic sensor 4 are arranged in particular flush and adjacent to the rear side 18th of the outer part 3 can be arranged.
  • the top of the ultrasonic sensor 4 can
  • Ultrasonic sensor 4 may be formed.
  • the damping device 5 here has a layered structure along the longitudinal axis L, which here comprises a first layer 19 and a second layer 20.
  • the first layer 19 has the concentric structure which comprises the two regions 9, 10 with the two different materials M1, M2.
  • the second layer 20 has a third material M3, which forms a third damping element and increases a degree of damping of the outer part 3 in a third temperature range of the outer part 3 and / or a third frequency range of the vibrations.
  • the first layer 19 has the segmented structure comprising at least two regions and / or that the second layer 20 has the segmented or concentric structure comprising at least two regions.
  • the damping device 5 here comprises a stabilizing layer or a stiffening layer 21, which is adapted to receive, together with the damping elements, shearing forces for damping the vibrations in the outer part 3.
  • the stiffening layer 21 may be formed of aluminum, for example.
  • the plate-shaped damping device 5 has a thickness 22 along the longitudinal axis L, which is in particular at most 1 mm. There is also a
  • Diameter 23 of the plate-shaped damping device 5 in a plane perpendicular to the longitudinal axis L for example, at most 20 cm, in particular at most 10 cm. Under the plate-shaped damping device 5 is therefore here a
  • FIG. 5 shows two characteristic curves 24, 25 which show the dependence of a damping capacity D of the two materials M1, M2 on the temperature T.
  • the temperature T is plotted on the abscissa and the damping capacity D of the materials M1, M2 is plotted on the ordinate.
  • a first characteristic curve 24 assigned to the material M1 it is shown that the material M1 has a particularly high damping capacity D in the first temperature range T1, since a maximum of the first characteristic curve 24 lies within the first temperature range T1.
  • the material M2 Based on a second, the material M2
  • Temperature range T2 has a particularly high damping capacity D, since a maximum of the second characteristic 25 is within the second temperature range T2.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention concerne un dispositif d'amortissement (5) pour une partie extérieure (3) d'un véhicule automobile (1) pour l'amortissement de vibrations de la partie extérieure (3) provoquées par un capteur à ultrasons (4) lors de l'émission et/ou la réception de signaux ultrasonores, le dispositif d'amortissement (5) comprenant au moins deux éléments d'amortissement (7, 8), un premier parmi les éléments d'amortissement (7) étant conçu pour augmenter un degré d'amortissement de la partie extérieure (3) dans une première plage de températures (T1) de la partie extérieure (3) et/ou dans une première plage de fréquences des vibrations, et un deuxième parmi les éléments d'amortissement (8) étant conçu pour augmenter un degré d'amortissement de la partie extérieure (3) dans une deuxième plage de températures (T2) différente de la première plage de températures (T1) de la partie extérieure (3) et/ou dans une deuxième plage de fréquences différente de la première plage de fréquences des vibrations. L'invention concerne en outre un agencement (2) comprenant au moins un dispositif d'amortissement (5) et un véhicule automobile (1) comprenant un agencement (2).
PCT/EP2016/071492 2015-09-29 2016-09-13 Dispositif d'amortissement pour une partie extérieure, agencement comprenant un dispositif d'amortissement et véhicule automobile WO2017055071A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/763,476 US11056091B2 (en) 2015-09-29 2016-09-13 Damping device for an exterior part, arrangement having a damping device, and motor vehicle
EP16763529.1A EP3356851A1 (fr) 2015-09-29 2016-09-13 Dispositif d'amortissement pour une partie extérieure, agencement comprenant un dispositif d'amortissement et véhicule automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015116442.6A DE102015116442A1 (de) 2015-09-29 2015-09-29 Dämpfungseinrichtung für ein Außenteil, Anordnung mit einer Dämpfungseinrichtung sowie Kraftfahrzeug
DE102015116442.6 2015-09-29

Publications (1)

Publication Number Publication Date
WO2017055071A1 true WO2017055071A1 (fr) 2017-04-06

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PCT/EP2016/071492 WO2017055071A1 (fr) 2015-09-29 2016-09-13 Dispositif d'amortissement pour une partie extérieure, agencement comprenant un dispositif d'amortissement et véhicule automobile

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US (1) US11056091B2 (fr)
EP (1) EP3356851A1 (fr)
DE (1) DE102015116442A1 (fr)
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US11056091B2 (en) 2021-07-06
DE102015116442A1 (de) 2017-03-30

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